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TCS
2010
13 years 3 months ago
Towards practical feasibility of core computation in data exchange
Abstract. Core computation in data exchange is concerned with materializing the minimal target database for a given source database. Gottlob and Nash have recently shown that the c...
Reinhard Pichler, Vadim Savenkov
PODS
2006
ACM
137views Database» more  PODS 2006»
14 years 5 months ago
Data exchange: computing cores in polynomial time
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...
Georg Gottlob, Alan Nash
CIKM
2007
Springer
13 years 11 months ago
Towards practically feasible answering of regular path queries in lav data integration
Regular path queries (RPQ’s) are given by means of regular expressions and ask for matching patterns on labeled graphs. RPQ’s have received great attention in the context of s...
Manuel Tamashiro, Alex Thomo, Srinivasan Venkatesh
SIGMOD
2009
ACM
132views Database» more  SIGMOD 2009»
14 years 5 months ago
Core schema mappings
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...
Giansalvatore Mecca, Paolo Papotti, Salvatore Raun...